一个简单问题

[blackmerry]

public class Test{
public static void main(String[] args){
String foo=args[1];
Sring bar=args[2];
String baz=args[3];
}
}
java Test Red Green Blue
what is the value of baz?
A. baz has value of ""
B. baz has value of null
C. baz has value of "Red"
D. baz has value of "Blue"
E. baz has value of "Green"
F. the code does not compile
G. the program throw an exception
ANS: G
求解中

[dxlove]

数组的问题


java Test Red Green Blue

数组是从0开始的

args[0] = Red;
args[1] = Green;
args[2] = Blue;

因为args[3] = null空值

就会出现异常

[Fenglee2008]

楼上是正解！C语言就学过数组下标是从0开始的呀！

[bt_lose]

二楼正确 会抛出java.lang.ArrayIndexOutOfBoundsException的异常

[zjhlht]

对哦~~~~

应该是从0开始！

飘走~~~